A mobile device capable of supporting applications for semi-literate farmers and agricultural industry workers. Such applications are designed to be user-friendly, primarily employ audio form to provide data and information, and promote audio based interactions. In particular, the mobile device comprises a client application that avoids/minimizes the use of keyboard, supports audio-message based interactions and data communications, supports language selection, provides intuitive icons to aid comprehension and user selection, and keeps user interaction simple. The client application comprises a labor contract module that facilitates interaction by a user (who is typically a farmer or agricultural worker) using audio messages to find and hire contract labor. The client application also comprises a social group interaction module that facilitates interaction with mobile social networks, such as groups of farmers in a region of the world, or a group of farmers growing a specific type of crop.